<!DOCTYPE html>
<html>
<head>
  <meta  charset="utf-8">
  <title></title>
</head>
<body>
<script tupe="text/javascript">
function tulin(say){
  switch (say) {
    case '土豆':
    console.log('哟');
    break;
    case '切克闹':
      console.log('切克闹');
      break;
      case '煎饼果子来一套':
        console.log('煎饼果子来一套');
        break;
    default:

  }
}
tulin('土豆');
tulin('哟');
tulin('切克闹');
tulin('煎饼果子来一套');
</script>
</body>
</html>
